Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSTOYOTA2018PRIUS TWO ECOREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTCELLULAR COMMUNICATION SYSTEM - SERVICE INFORMATIONBACK-UP BATTERYREMOVAL [12/2018 - 07/2020]PROCEDURE

2018 Toyota Prius Two Eco

Removal [12/2018 - 07/2020]: Procedure

2018 Toyota Prius Two EcoSECTION Procedure

REMOVE DCM (TELEMATICS TRANSCEIVER)
Refer to REMOVAL [12/2018 - 08/2019] , or refer to REMOVAL [08/2019 - 07/2020]

REMOVE BACK-UP BATTERY

Disengage the 2 claws and remove the transceiver cover as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove in this Direction

Disconnect the connector and remove the back-up battery as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove in this Direction

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.